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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let arr1 = [{name: '张三'}]
        let arr2 = []
        arr2 = [...arr1]
        // arr2[0].name = '李四'
        // console.log(arr1 === arr2)

        arr2.pop()
        console.log(arr1, arr2)
    </script>
</body>
</html>